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Stream ciphers

In cryptography, ciphers is the technical term for encryption and decryption algorithms. They are an important sub-family that features high speed and easy implementation and are an essential part of wireless internet and mobile phones. Unlike block ciphers, stream ciphers work on single bits or single words and need to maintain an internal state to change the cipher at each step. Typically stream ciphers can reach higher speeds than block ciphers but they can be more vulnerable to attack. Here, mathematics comes into play. Number theory, algebra and statistics are the key to a better understa.再讀一些...

摘要：

This book surveys the history and mathematics of stream ciphers, discussing modern examples and their robustness against attacks. Covers linear feedback shift registers, algebraic attacks, special ciphers including the blum-blum-shub generator and more.再讀一些...

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出版商概要

From the book reviews:"This book focuses on the theory of stream ciphers and their applications. ... Seldom does one find a summary of the theory of stream ciphers as systematic as that in the book under review. ... the book covers completely the topic of attacks on stream ciphers ... . This is a remarkable book and it should be of interest to scholars and students in discrete mathematics, cryptography, coding theory, computer security and related fields." (Zhixiong Chen, Mathematical Reviews, March, 2014)"Starting with a historical overview, this book gives a very good and comprehensive introduction to the mathematics of stream ciphers. ... the book can serve as a valuable contribution to advanced undergraduate and graduate cryptography lectures in mathematics and computer science." (Wilfried Meidl, zbMATH, Vol. 1288, 2014)"Provide a coherent discussion of stream ciphers, how they are implemented, and how they can be attacked. ... The material is presented in a logical fashion. The writing is clear and the mathematics well presented ... . The book is intended for advanced undergraduate and graduate students of mathematics or computer science. ... it presents the reader with applications in a number of important theoretical areas of mathematics and computer science, including graph theory, complexity and performance analysis of algorithms, P versus NP, and more." (G. R. Mayforth, Computing Reviews, September, 2013)再讀一些...